ERW detorsion device
Technical field
The invention belongs to the metallurgy industry welded tube and correct the field, refer to a kind of ERW detorsion device particularly.
Technical background
Welded tube is the steel pipe of processing through welding behind the cans with steel plate or band steel, is divided into circular welded tube and abnormal shape (square, flat etc.) welded tube by end shape; Form by weld seam is divided into ERW and spiral welded pipe.
When welded tube occurs bending aborning or reverses defective at present, rely on two four roller straighteners (also claiming inclined to one side eight rollers) to align.This straightener is to rely on the position adjusting mechanism of quadruplet roller seat to adjust smoothing roll and pass; Adopt link plate elevating adjusting device, the traversing adjusting device of frame, link plate rotation adjuster, the change in location that constitutes smoothing roll is jointly corrected the bending defect of welded tube.When welded tube was square tube, it corrects roll surface was the plane, corrected the pass that roll surfaces constitute square or rectangle for four, drove wherein four correct rollers of one by rotation adjuster and rotated and reverse welded tube, thereby can correct the defective of reversing of welded tube.When welded tube was pipe, the round pass that four correct rollers of this arbor press constitute can't make circular welded tube produce twisting resistance.
Therefore, the lateral bending defective that above-mentioned welded tube apparatus for correcting can only the side's of rectification square type welded tube can not be corrected the weld seam that ERW departs from the unit center line, can not correct different size circular welded tube reverse defective.
Summary of the invention
The object of the invention will overcome the existing in prior technology deficiency exactly, and a kind of ERW detorsion device of correcting the circular welded tube of different size is provided.
For achieving the above object; The ERW detorsion device that the present invention designed; Comprise frame component and be arranged on the correct roller assembly on the frame component, said frame component comprises mounting seat and casing, and said casing is provided with slide rail; Said correct roller assembly has two covers; Be set in parallel on the frame component, said correct roller assembly is provided with the horizontal guiding mechanism and the rotating and regulating mechanism that is used to control the rotation of correct roller assembly that is used to control distance between the relative two cover correct roller assemblies, and said horizontal guiding mechanism and said slide rail are slidingly matched;
Said correct roller assembly comprises corrects roll shaft, correct roller, roller seat riser, roller seat base plate and roller seat cover plate; Said roller seat base plate and roller seat cover plate are separately positioned on the bottom and the top of said roller seat riser; The lower end spindle nose of said rectification roll shaft is contained in the said roller seat base plate; The upper end spindle nose of said rectification roll shaft is installed in the axis hole of said roller seat cover plate; The top of said rectification roll shaft is equipped with dismountable shaft-cup plate, and said correct roller is installed in through roll sleeve and corrects on the roll shaft, and it is interval that the medial extremity of the correct roller of said two cover correct roller assemblies forms the welded tube detorsion relatively.Like this, can change the correct roller of different size through dismounting shaft-cup plate.
In the such scheme, be provided with the adjusting backing plate group of replaceable thickness between said mounting seat and the casing.Like this, can regulate height between frame component and the correct roller assembly.
In the such scheme, said slide rail is four laths of metals, through the top edge of bolted at casing.Like this, laterally guiding mechanism can make the correct roller assembly on slide rail, more stably slide.
In the such scheme; Said roll sleeve is installed in the outer ring of said rectification roll shaft through the axial restraint bearing; Said correct roller is installed in the outer ring of said roll sleeve; The lower end of said roll sleeve is provided with the axle sleeve step of the axial location that is used for correct roller, the clamp nut that the upper end of said roll sleeve is provided with external screw thread and matches with external screw thread, said clamp nut after correct roller is packed roll sleeve into the correct roller axial compression.Like this, correct roller is installed in through roll sleeve and corrects on the roll shaft.
In the such scheme, said axial restraint bearing is installed in the top and bottom of correcting roll shaft, and the top and bottom of said rectification roll shaft are respectively arranged with and are used for spindle nut and the pillow block rank of installation shaft to rigid bearing, and seal cover is equipped with in the upper end of said spindle nut.
In the such scheme, said horizontal guiding mechanism comprises horizontal adjustment drive system, first screw mandrel, second screw mandrel, first swivel nut that cooperates with first wire rod thread, second swivel nut that cooperates with second wire rod thread and first slide that on slide rail, slides and second slide;
The output shaft of said horizontal adjustment drive system connects with the first screw mandrel concentric; Said first screw mandrel connects with the second screw mandrel concentric through adapter sleeve; The said first screw mandrel radial location is installed on the end plate of casing, and the said second screw mandrel radial location is installed on the front end-plate of casing, and said first screw mandrel is connected through first swivel nut and first slide; Said first screw mandrel is identical with the hand of spiral of first swivel nut; Said second screw mandrel is connected through second swivel nut and second slide, and said second screw mandrel is identical with the hand of spiral of second swivel nut, and opposite with the hand of spiral of first screw mandrel and first swivel nut; Be provided with torsional axis on said first slide and second slide; The axis of said torsional axis and the axis normal of correcting roll shaft; The spindle nose of said torsional axis is installed in the roller seat riser, and said torsional axis is slidingly matched through the installing hole of bearing and first slide or second slide.Like this, when laterally adjusting drive system and driving first screw mandrel and second screw mandrel and rotate, first slide and second slide are done separately or are closed up action, reach the purpose of distance between the relative two cover correct roller assemblies of adjustment.
Preferably, the hand of spiral of said first screw mandrel and first slide is dextrorotation, and the hand of spiral of said second screw mandrel and second slide is left-handed.
In the such scheme; Said second screw mandrel is provided with centering adjustment swivel nut near the outboard end place; Threaded engagement on the external screw thread of said centering adjustment swivel nut and the front end-plate of casing, and be fixed on the front end-plate through clamp nut, the endoporus and second screw mandrel that said centering is adjusted swivel nut are slidingly matched.Like this, regulate the position of centering adjustment swivel nut, can drag second screw mandrel and drive first slide and whole horizontal the moving of second slide, reach the purpose of the relative unit central cross of correct roller assembly centering adjustment.
In the such scheme, the outboard end of said second screw mandrel is provided with screw thread and reaches and this threaded-fit screw rod nut, and said feed screw nut is axially fixed on the outboard end of said centering adjustment swivel nut.Like this, through feed screw nut's axial restraint centering adjustment swivel nut, prevent that centering adjustment swivel nut from horizontally slipping at work.
In the such scheme; Said rotating and regulating mechanism comprises rotation adjustment drive system, first lift, second lift, first elevating screw and second elevating screw; The output shaft of said rotation adjustment drive system is connected with first worm shaft of first lift; The other end of said first worm shaft is connected with splined shaft through universal joint; The output of said splined shaft is provided with the spline sleeve, and the output of said spline sleeve is connected with second worm shaft of second lift, and said first lift and second lift are separately fixed on first slide and second slide through support; First worm shaft of said first lift drives the worm gear that is provided with in first lift and rotates; Worm-gear driven first elevating screw of said first lift moves up and down; Second worm shaft of said second lift drives the worm gear that is provided with in second lift and rotates; Worm-gear driven second elevating screw of said second lift moves up and down, and the hand of spiral of said first elevating screw and second elevating screw is opposite; The upper end of said first elevating screw and second elevating screw all is equipped with connecting rod; The upper end of said connecting rod is hinged with and the fixing last spindle nose of roller seat riser through upper pin, and the lower end of said connecting rod is hinged with and first elevating screw or the fixing following spindle nose of second elevating screw through lower bearing pin.Like this; When laterally adjusting drive systems; When the worm shaft of two lifts rotates in the same way; First elevating screw and second elevating screw move up and down, thereby the last lower limb of two correct rollers is produced respectively upwards and downward opposition, and this active force just can be corrected the defective of reversing on the pipe.
Beneficial effect of the present invention is: the present invention not only can be to correcting product lateral bending defective, and can correct the weld seam of deflection.The present invention can correct the defective of reversing of the circular welded tube of different size through the correct roller of changing different size, to satisfy the production of different size pipe, has overcome prior art and can not correct the problem that pipe reverses defective.The present invention can carry out the adjustment of correct roller position according to the variation of product cross dimensions, effectively improves the product quality of ERW, enhances productivity, and reduces the generation of waster.
Description of drawings
Fig. 1 is the structural representation of ERW detorsion device.
Fig. 2 is the plan structure sketch map of Fig. 1.
Fig. 3 is the A-A cross section sectional structure sketch map among Fig. 1.
Fig. 4 is the structural representation of correct roller assembly among Fig. 1.
Fig. 5 is a correct roller windup-degree sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description:
ERW detorsion device shown in Fig. 1 ~ 3 comprises frame component 1 and is arranged on the correct roller assembly 2 on the frame component 1 that frame component 1 comprises mounting seat 1.1 and casing 1.2, and casing 1.2 is provided with slide rail 5.Slide rail 5 is four laths of metals, through the top edge of bolted at casing 1.2.Be provided with the adjusting backing plate group 6 of replaceable thickness between mounting seat 1.1 and the casing 1.2.Correct roller assembly 2 has two covers; Be set in parallel on the frame component 1; Correct roller assembly 2 is provided with the horizontal guiding mechanism 3 and the rotating and regulating mechanism 4 that is used to control 2 rotations of correct roller assembly that is used to control distance between the relative two cover correct roller assemblies 2, and laterally guiding mechanism 3 is slidingly matched with slide rail 5.
Correct roller assembly 2 comprises corrects roll shaft 2.1, correct roller 2.2, roller seat riser 2.3, roller seat base plate 2.4 and roller seat cover plate 2.5.Roller seat base plate 2.4 and roller seat cover plate 2.5 are separately positioned on the bottom and the top of roller seat riser 2.3; The lower end spindle nose of correcting roll shaft 2.1 is contained in the roller seat base plate 2.4; The upper end spindle nose of correcting roll shaft 2.1 is installed in the axis hole of said roller seat cover plate 2.5; The top of correcting roll shaft 2.1 is equipped with dismountable shaft-cup plate 2.6, and correct roller 2.2 is installed in through roll sleeve 2.7 and corrects outside the roll shaft 2.1.It is interval that the medial extremity of the correct roller 2.2 of two cover correct roller assemblies 2 forms the welded tube detorsion relatively.
In conjunction with Fig. 1 and Fig. 4; Roll sleeve 2.7 is installed in the outer ring of correcting roll shaft 2.1 through axial restraint bearing 2.8; Correct roller 2.2 is installed in the outer ring of roll sleeve 2.7; The lower end of roll sleeve 2.7 is provided with the axle sleeve step 2.7.1 of the axial location that is used for correct roller 2.2, the clamp nut 2.9 that the upper end of roll sleeve 2.7 is provided with external screw thread and matches with external screw thread, clamp nut 2.9 after correct roller 2.2 is packed roll sleeve 2.7 into correct roller 2.2 axial compression.Axial restraint bearing 2.8 is installed in the top and bottom of correcting roll shaft 2.1; The top and bottom of correcting roll shaft 2.1 are respectively arranged with and are used for spindle nut 2.1.1 and the pillow block rank 2.1.2 of installation shaft to rigid bearing 2.8, and seal cover 2.1.3 is equipped with in the upper end of spindle nut 2.1.1.
In conjunction with Fig. 1 and Fig. 2, laterally guiding mechanism 3 comprise horizontal adjustment drive system 3.1, first screw mandrel 3.4, second screw mandrel 3.5, with first swivel nut 3.7 of first screw mandrel, 3.4 threaded engagement, with second swivel nut 3.8 of second screw mandrel, 3.5 threaded engagement and first slide 3.2 and second slide 3.3 that on slide rail 5, slide.
Laterally the output shaft of adjustment drive system 3.1 connects with first screw mandrel, 3.4 concentrics, and first screw mandrel 3.4 connects with second screw mandrel, 3.5 concentrics through adapter sleeve 3.6.3.4 radial locations of first screw mandrel are installed on the end plate 1.2.1 of casing 1.2, and 3.5 radial locations of second screw mandrel are installed on the front end-plate 1.2.2 of casing 1.2.First screw mandrel 3.4 is connected through first swivel nut 3.7 and first slide 3.2, and first screw mandrel 3.4 is identical with the hand of spiral of first swivel nut 3.7, is dextrorotation.Second screw mandrel 3.5 is connected through second swivel nut 3.8 and second slide 3.3, and second screw mandrel 3.5 is identical with the hand of spiral of second swivel nut 3.8, is left-handed.
Be provided with torsional axis 3.9 on first slide 3.2 and second slide 3.3; The axis of torsional axis 3.9 and the axis normal of correcting roll shaft 2.1; The spindle nose of torsional axis 3.9 is installed in the roller seat riser 2.3, and torsional axis 3.9 is slidingly matched through the installing hole of bearing and first slide 3.2 or second slide 3.3.
Second screw mandrel 3.5 is provided with centering adjustment swivel nut 3.10 near the outboard end place; Threaded engagement on the external screw thread of centering adjustment swivel nut 3.10 and the front end-plate 1.2.2 of casing 1.2; And be fixed on the front end-plate 1.2.2 through clamp nut 3.11, the endoporus and second screw mandrel 3.5 of centering adjustment swivel nut 3.10 are slidingly matched.The outboard end of second screw mandrel 3.5 is provided with screw thread and reaches and this threaded-fit screw rod nut 3.12, and feed screw nut 3.12 is axially fixed on the outboard end of said centering adjustment swivel nut 3.10.
As shown in Figure 2, rotating and regulating mechanism 4 comprises rotation adjustment drive system 4.1, first lift 4.2, second lift 4.3, first elevating screw 4.4 and second elevating screw 4.5.The output shaft of rotation adjustment drive system 4.1 is connected with the first worm shaft 4.2.1 of first lift 4.2; The other end of the first worm shaft 4.2.1 is connected with splined shaft 4.7 through universal joint 4.6; The output of splined shaft 4.7 is provided with spline sleeve 4.8, and the output of spline sleeve 4.8 is connected with the second worm shaft 4.3.1 of second lift 4.3.First lift 4.2 and second lift 4.3 are separately fixed on first slide 3.2 and second slide 3.3 through support 4.9.
The first worm shaft 4.2.1 of first lift 4.2 drives the worm gear that is provided with in first lift 4.2 and rotates, and worm-gear driven first elevating screw 4.4 of first lift 4.2 moves up and down.The second worm shaft 4.3.1 of second lift 4.3 drives the worm gear that is provided with in second lift 4.3 and rotates, and worm-gear driven second elevating screw 4.5 of second lift 4.3 moves up and down.The hand of spiral of first elevating screw 4.4 and second elevating screw 4.5 is opposite.
In conjunction with Fig. 2 and Fig. 3; The upper end of first elevating screw 4.4 and second elevating screw 4.5 all is equipped with connecting rod 4.10; The upper end of connecting rod 4.10 is hinged with the last spindle nose of fixing with roller seat riser 2.3 4.12 through upper pin 4.11, and the lower end of connecting rod 4.10 is hinged with the following spindle nose of fixing with first elevating screw 4.4 or second elevating screw 4.5 4.14 through lower bearing pin 4.13.
The course of work of the present invention:
Can choose suitable correct roller 2.2 according to the size of the ERW diameter of being produced before use,, correct roller 2.2 packed into behind the roll sleeve 2.7 according to structure assembling among Fig. 4, with clamp nut 2.9 with correct roller 2.2 axial compression.The lower end spindle nose of correcting roll shaft 2.1 is contained in the circular hole of roller seat base plate 2.4, can axially split out.The upper end spindle nose of correcting roll shaft 2.1 is installed in the axis hole of said roller seat cover plate 2.5.The construction bolt of dismounting top axle cover plate 2.6 with regard to removable shaft cover plate 2.6, can be changed the correct roller 2.2 of different size.
As shown in Figure 3; According to ERW diameter bottom line and the height of rolling line produced, regulate the height of frame component 1, between mounting seat 1.1 and casing 1.2; The adjusting backing plate group 2 of selected thickness is installed, mounting seat 1.1 and casing 1.2 are passed through Bolt Connection.
Use horizontal guiding mechanism 3 to carry out the adjustment of distance between the correct roller 2.2 of two cover correct roller assemblies 2: laterally to adjust first screw mandrel 3.4 that drive system 3.1 drives coaxial connection and rotate; Driving second screw mandrel 3.5 rotates; Because the hand of spiral of first screw mandrel 3.4 and second screw mandrel 3.5 is opposite; Thereby make first swivel nut, 3.7 drives, first slide, 3.2 slips with first screw mandrel, 3.4 threaded engagement; Make second swivel nut 3.8 with second screw mandrel, 3.5 threaded engagement drive second slide 3.3 simultaneously and slide, first slide 3.2 and second slide 3.3 are done on slide rail 5 separately or are closed up action, thereby reach the purpose of adjusting distance between two relative correct rollers 2.2.The size of the ERW specification that the scope of adjustment is produced according to unit and the correct roller 2.2 that uses and confirm.
When the center of two correct rollers 2.2 and roll line decentraction; Use 3.10 adjustment of centering adjustment swivel nut: unscrew clamp nut 3.11 earlier; Manually pull centering adjustment swivel nut 3.10; Drag second screw mandrel 3.5 and drive whole horizontal the moving of slide, reach the purpose of correct roller 2.2 relative unit central cross centerings adjustment.
When product occurs reversing defective aborning, just need through two correct rollers 2.2 of rotating and regulating mechanism 4 adjustment with angle of the relative rotation in the center of torsional axis 3.9.Starting first worm shaft 4.2.1 of rotation adjustment drive system 4.1, the first lifts 4.2 and the second worm shaft 4.3.1 of second lift 4.3 rotates in the same way.The first worm shaft 4.2.1 of first lift 4.2 drives the worm gear that is provided with in first lift 4.2 and rotates, and moves up and down thereby drive first elevating screw 4.4; The second worm shaft 4.3.1 of second lift 4.3 drives the worm gear that is provided with in second lift 4.3 and rotates, and moves up and down thereby drive second elevating screw 4.5.When first elevating screw 4.4 moves down; The roller seat riser 2.3 on right side is rotated counterclockwise with the center of correct roller 2.2 with torsional axis 3.9; Simultaneously, second elevating screw 4.5 moves up, the roller seat riser 2.3 in left side and the center clockwise direction rotation of correct roller 2.2 with torsional axis 3.9.About the last lower limb of two correct rollers 2.2 produce respectively upwards and downward opposition, this active force can be corrected the defective of reversing on the pipe.Correct roller 2.2 rotation adjustment angle [alpha] are positive and negative 10 degree, and are as shown in Figure 5.